Valve



1,441,646. L. D. VAUGHAN.

VALVE.

FILED MAY 4. 1921.

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LEV-1191B.VAUGHAN, or rnrnannrrnra, rnnnsvrvanra.

VALVE,

Application filed May 4, 1921. Serial No. 466,643.

To all 107220722 712 may] concern:

Be it known that. ln viN D. VAUGHAN, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, has invented certain new and useful Improvements in Valves, of which the following is a specification.

My invention relates to valves and has for its principalobject the provision of means for releasing air and other pressure on a radiatorsystem of hot water heating.

With these objects in view, and others as will appear as the description proceeds, the invention comprises the various novel features of construction and arrangement of parts which will be more fully describr-ul hereinafter and set forth with particularity in the claims appended hereto.

In the accompanying drawings which illustrate the preferred embodiment of my invention, i

Figure 1 is a vertical sectional view through the valve embodying the present invention, the valve being arranged for use in a vertical pipe; and

Figure 2 is a perspective group view illustratingthe parts of the valve about to be assembled.

Like numerals of reference refer to like parts throughout the drawings.

The numeral 10 represents a valve casing comprising a rounded body portion 10', a rounded cap or headv 11 provided with th extending eXteriorly threaded portion 12 and an integral hexagonal. nut 1i beneath said head 11, whereby said head 11 may be threaded into the interiorly threaded. upper part of the body portion 10 of the valve casing 10.

Said body portion 10 is rounded, substantially, centrally, as'illustrated, and has the interiorly threaded outlet 15 in one side thereof and a like interiorly threaded inlet 16 in its base to engage a vertical pipe.

A valve seat 17 is provided at, substantially, the base of the side outlet 15, in the interior of the body portion 10 of the valve casing 10.

The valve stem 18, terminating in an inverted cone shaped valve proper 19, provided with the spirally extending grooves 20 therein, resulting in spiral blades 21, adapted to seat upon said valve seat 17, the spiral blades 21 thereof extending below seat 17 and within the inlet 16. W hen provides a guideway forthe travel of the r valve stem 18. A screw driver slot 26 is provided in the upper end of the valve stem 18 so that said valve 19 may be ground upon the seat 17, if necessary.

A washer28 is provided between a hexagonal lock nut 27 threaded on the exterior threaded portion 12 of the head ll and the open end of the body portion 10 of the-valve casing 10. v

In operation :-The valve is assembled,

the inlet 16 being connected to a vertical pipe from a tank having a radiator connection (not shown), or other suitable source of supply, and the outlet 15 to a vent pipe, or other outlet. The valve is then set for a given pressure by means of the lock nut 27. When this given pressure is had the valve releases thereby releasing the air in the top of the tank, or supply means, to which said inlet 16 is connected and permits the water therein to pass thru the valve 19 and out the outlet 15 by reason of the lifting of said valve from the seat 17 when the pressure is relaxed. When the pressure again becomes normal said valve will reseat itself; said valve thereby acting as a releasing valve. Said valve may also be used for other advantageous ends.

From the foregoing description, taken in connection with the accompanying drawings, the advantages of construction and of the methods of operation will be readily apparent to those skilled in the art to which the invention appertains.

l i hat I claim as new and desire to secure by Letters Patent is:-

1. A pressure relief valve structure comprising, a casing provided atone end with a tubular inlet and having a valve seat at the inner end of said tubular inlet, said valve seat being conical, said casing having an elongated sleeve at its end opposite to the tubular inlet and also having an outlet upon one side thereof, Q F- CQl valve mo nted upon the conical valve seat and provided upon its outer end with twisted flanges extending outwardly from the conical valve and positioned Within the tubular inlet, a relatively long stem rigidly secured to the valve and projecting into the elongated sleeve, a single integral element embodying a cap and a relatively long extension, said extension being exteriorly threaded to have screw threaded engagement within the elongated sleeve, said relatively long extension having a main longitudinal opening of substantial length slidab-ly receiving the end portion of the valve stem, said extension having a counterbore formed in its inner end surrounding the main longitudinal opening, and compressible coil spring surrounding the valve stem with one end engaging the valve and the other end seated within the counterbore, said single integral element being adjustable to regulate the tension of said spring, and means to lock said element in adjustment in a selected position. 7

2. A pressure relief valve structurecomprising, a casing provided at one end with a tubular inlet and having a conical valve seat arranged adjacent thereto, said casing having anelongatedsleeve at its end opposite to the tubular inlet and also having an outlet upon one side thereof a conical valve mounted upon the conical valve seat and provided upon its outer endwith. twisted flanges extending outwardly therefrom and positioned within the tubular inlet, a relatively long stem rigidly secured to the valve and projecting into the elongated sleeve and opening extending longitudinally thereof'to receive the end portion ofthe valve stem, said extension having a counterbore formed in its inner end surrounding the main longitudinal opening, acompressible coil spring surrounding the valve stem with one end engaging the valve and the other end seated within said eounterbore, said element being adapted to be turned to adjust vthe tension of said spring and being adapted to be bodily removed from its sleeve to afford access to the slotted end of the YalVQStGID, and

lock nut having screw threaded engagement with said extension and adapted to bind against said sleeve.

In testimony whereof I a'liix my signature.

LEVIN n. VAUGHAN.

extension having a main relatively long 

